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[Xen-devel] [OSSTEST PATCH 1/3] ts-depriv-audit-qemu: Create complete /run/user in appropriate root

* Use mkdir -p, rather than trying to only create /run/user/$uid.
  That helps if /run and/or /run/user do not exist, as they do in
  libxl-made chroots with recent libxl (which gets qemu to chroot).

* Do all of this in the root directory of the qemu process, not our
  own root directory.  So it works if qemu is chrooted.

CC: George Dunlap <george.dunlap@xxxxxxxxxx>
Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
 ts-depriv-audit-qemu | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/ts-depriv-audit-qemu b/ts-depriv-audit-qemu
index 5d09350..4e07d76 100755
--- a/ts-depriv-audit-qemu
+++ b/ts-depriv-audit-qemu
@@ -48,9 +48,10 @@ END
         qpid=$(xenstore-read /local/domain/$domid/image/device-model-pid)
         uid=$(id -u xen-qemuuser-range-base)
         uid=$(( $uid + $domid ))
-        test -d /run/user || mkdir -m 2755 /run/user
-        if mkdir -m 2700 /run/user/$uid; then
-            chown $uid:root /run/user/$uid
+        qroot=$(readlink /proc/8123/root)
+        mkdir -pm 2755 $qroot/run/user
+        if mkdir -m 2700 $qroot/run/user/$uid; then
+            chown $uid:root $qroot/run/user/$uid
         osstest-depriv-fd-collector $qpid \

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